Lahore, Dec 15 (IANS): Pakistan Tehreek-i-Insaf (PTI) chief Imran Khan Monday joined a caravan of his supporters which was passing through different areas of Lahore after imposing a shutdown on the city earlier in the day.

According to officials, the caravan is expected to culminate in a rally outside the Punjab assembly premises, Dawn online reported.

Cricketer-turned-politician Imran Khan was seen standing on the hood of the vehicle he was travelling in.

He was waving to his supporters and addressed them when the caravan reached Liberty area.

His vehicle was surrounded by a large number of supporters who formed a cordon of their own for security.

PTI activists have gathered at various locations here, where they burnt tyres and blockaded 18 areas, closing down alll traffic.

The blockaded areas include Mall Road, Liberty Chowk, Bhutta Chowk, Town Hall Chowk and the area outside the Punjab assembly.

A clash occurred between Pakistan Muslim League-Nawaz (PML-N) and PTI activists, however, no one was injured.

Dec 12, PTI successfully imposed a shutdown in the port city of Karachi.

PTI's earlier shutdown in Faisalabad Dec 8 resulted in the death of a party activist during violent clashes with PML-N supporters and police.

The shutdowns are aimed towards forcing an inquiry into alleged rigging in the May 2013 general elections.